Etymologies

Examples

Their ghostly appearance is enhanced by the fact that the undersides of their chalk-white wings are dark brown, so with every upstroke they seem to disappear in the moonlight, then reappear on the downstroke.

With this the doughty Pipchin produces a canvas bag; and tells her wages out to that day, and a month beyond it; and clutches the money tight, until a receipt for the same is duly signed, to the last upstroke; when she grudgingly lets it go.

He wouldn't acknowledge that the forced inhale on the downstroke was imposed and not natural according to the movement, saying it was 'optimal' oxygenating therefore energizing for the next movement, which thereby would give a natural/forced exhale on the upstroke.